> Personally I've noticed that my overall impression of experiences is usually much more positive than they should be.

I envy you a little bit.

I've noticed that my overall impression of experiences is usually extremely negative, as no matter how many positive memories I have, the negative experiences always overwhelm me so much that the positive ones don't even feel real.

I remember going to a vacation, and while there were a few pleasant moments, I can't really recall them and re-experience them - I just know rationally that they did happen. But recalling unpleasant moments brings all the unpleasantness back to the present moment.

I really wish it was the other way around.